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Advanced Texturing
Texture Wrap
Texture wrapping allows you to spread one copy of a texture over multiple textures (You could select the floor of a room, say, and spread a texture over it). This option basically does a planar projection of the texture onto all of the selected polygons.
After selecting the polygons that you want to texture you should press T (while in polygon mode). Inteng will then ask you to click on a polygon. The selected polygon serves two purposes, it is used to determine the plane and orientation of the projection. It is easiest if there is a nice rectangular polygon on the plane that you want to use .(The polygon that you click on, doesn't have to be one of the polygons that you are texturing).
Once you have done this, the texture should be spread over the polygons, and the words "Texture Wrap" will appear in the text on the left of the screen. Inteng will remain in texture wrap mode until you press Ctrl + T or until all polygons are deselected. If you select of deselect polygons while in texture map mode, and then press T, then Inteng will reapply the texture without asking you for the plane to use again.
Texture mode behaves somewhat differently while in texture map mode. You will be shown 4 nodes as normal, however if you move any node then the rest of the nodes will be adjusted in order to keep them in a rectangular formation. The area contained within the nodes is the area that will be projected onto the polygons, instead of the area that should be used on each individual polygon.
Texture Tiling
Texture tiling is similar to texture wrapping except that instead of spreading one copy of a texture across the polygons, Inteng uses as many tiles of the texture as it needs to cover all of the selected polygons. (Basically the amount of texture used on each polygon is based upon distance). Texture tiling is done in the same way as texture wrapping, except that you press Shift + T instead of T.
Texture tiling behaves differently while in texture mode however. In this case the nodes are only used for determining the orientation of the texture on the polygons, there are special keys for determining how many pixels of the texture should be used per meter. The keys are :7,9 Adjust the U scale
1,3 Adjust the V scale
4,6 Adjust the U offset
2,8 Adjust the V offset
0 (Combined with the above, adjusts everything faster)Basically altering the scale stretches and squashes the texture, and altering the offset scrolls the texture.
Multiple Node Mode
In multiple node mode, instead of showing 4 nodes on the texture, Inteng will draw one node for each vertex in the currently selected polygons. For example, select 4 adjacent square polygons that form a 2 by 2 grid. Next press T to wrap a texture over the polygons. Press M to turn on multiple node mode, and then TAB to enter texture mode. Instead of the normal 4 nodes, there should be 9 nodes in a 3 by 3 grid, corresponding to the 9 vertices used by the polygons. Once you have finished altering the nodes you should press TAB to return to polygon mode, and then press M to switch off multiple node mode.
This option is mainly useful for fine tuning the texturing after using the texture wrap of the texture tile options.
Polygon Mode Texturing Controls
There are a number of texturing options that can be accessed without entering texture mode :
X X-Flip texture co-ordinates
Y Y-Flip texture co-ordinates
E Rotate texture co-ordinates 90 degrees anti-clockwise
R Rotate texture co-ordinates 90 degrees clockwise
O Cycle nodes on selected polygons
V Reverse nodes on selected polygons
U Copy texturing from another polygon
I Align texturing on adjacent polygonsIf shift is held down while pressing O,V or U then the option will also effect all frames of a texture animation (should there be one). Texture animations will be explained later. The cycle and reverse node options are particularly useful for adjusting the texturing after using the copy texturing option (because it won't necessarily map the texture co-ordinates to the vertices in the way that you intended).
The align texture option is used for matching the texture co-ordinates for pairs of adjacent polygons. You will asked to click on two polygons, the texturing on the first polygon will be altered so as to line up with that on the second.